For learning Greek language it is necessary to know alphabets in Greek. You have to know alphabets in Greek to learn writing in Greek language. Greek alphabets are the building blocks of Greek language. There are 24 characters in Greek alphabets. Greek alphabets are made up of Greek vowels and Greek consonants. The Greek alphabets contain 7 vowels and 17 consonants. Greek vs German gives a comparison between Greek and German alphabets.
Greek script is also known as Greek writing system or Greek orthography. The set of visible signs used to represent units of Greek language in a systematic way is called Greek Script. The Greek language uses Arabic, Latin i.e. Greek alphabets are derived from Arabic, Latin script. The script decides the writing direction of the any language, hence the writing direction of Greek is Left-To-Right, Horizontal. Learn Greek Greetings where you will find some interesting phrases.
Is Greek hard to learn? The answer to this question is that it depends on one's native language. One should start learning Greek language with Greek alphabets and Greek phonology.
Time taken to learn any language that is mentioned here is the approximate time required to learn specific language for the person who is proficient in English. You can also go through all Indian Languages and find if Greek is one of the language of India.